1. Sodium formyl acetone is the key intermediate of 4,4-dimethoxy-2-butanone.

2. Formyl L aspartic anhydride was prepared by the reaction of L aspartic acid and formic acid with magnesium oxide catalyst in acetic anhydride solvent.

3. Fructus Mume was identified with ethyl acetate - formyl acid-water(14:7:7) as developing agent in silica gel G, and using 0.1% of bromocresol green as the visualization reagent.

4. An analysis of four factors which affect the yield of formyl aspartic acid anhydride, one of the intermediates of aspartame, was made in terms of their relational grades based on Grey System Theory.

5. R 2 is H , amino acid residues, alkyloxyethyl formyl, organic carboxylic acid acyl , phosphoryl, and alkyl.

6. Non - toxic inhibitor for esterase, lipase and N - formyl - methionine aminopeptidase. Inhibits also carboxypeptidase Y - like exopeptidase.

7. At room temperature, several novel unsymmetric ferrocenyl thiourea compounds were synthesized by reaction of substituted aniline with ferrocenyl formyl isothiocyanate.

8. In the two sides of nitrogen bridge, the degree of conjugation of one double bond with one formyl polyenic group is about equal to two aromatic cycles.